Controlling mechanism for printing-presses.



No. 706,623. Patented Aug. l2, I902.

W. C. WILLIAMS. CONTROLLING MECHANISM FOR PRINTING PRESSES.

(Applibltion fllaq Sept. 8, 1901.)

(No Model.)

INVENTOR.

I BY

WITNESSES I I ATTORNEY 1' mums PE1RS o0, rumouma, WAmmmoN a c UNITED (STATES. PATENT OFFICE.

\VILLIAM O. -WILLIAMS, OF BROOKLYN, NEIV YORK, ASSIGNOR TO WILLIAM M. KLEIN, OF CHICAGO, ILLINOIS.

CONTROLLING MECHANISM FOR PRINTING-PRESSES.

SPECIFICATION formingpart of Letters Patent No. 'Z'O6,623, dated August 12, 1902. Application filed September 3, 1901. Serial No. 74,106. (No model.)

To all whom it may concern: tion with a printing-machine in which the Be it known that I, WILLIAM C. WVILLIAMS, impression-cylinder makes two revolutions a citizen of the United States, and a resident for each impression and in which the sheets of Brooklyn, in the county of Kings and State are delivered from the top of the cylinder ,'5

of New York, have invented certain new and nearthe point Where the sheets are fed to the useful Improvements in Controlling Mechancylinder. .In this type of machine there is ism for Printing-Presses, of which the followprovided a set .of fingers, which are autoy ing is a specification. matically moved into and out of cooperative My invention relates toa controlling mechrelation with the impression-cylinder at the IO anism for printing-presses or similar paper proper time to-strip the sheet therefrom and manipulating machines, and more particutransferit to the delivery mechanism, and larly to a fluid-operated controlling mechanas it is at this point in the path of the sheet ism adapted to be rendered operative by the that the most troublev is experienced by the crumpling of the paper or -similar material erumpling of the paper I have illustrated my 15 during its passage through the machine. In inventionas applied to this part of the press.

passing through a press the paper frequently Referring to the drawings in detail, 1 repcatches and becomes crumpled, and if the resents a.portion of the frame of an ordinary machine is not immediately stopped the pabed-and-cylinder;machine.

' per gathers into a more or less compact mass, 2 is the impression-cylinder.

20 which is apt to become dislodged andbe car- 3 is thefeed-board, and 4 represents th ried into the printing mechanism,whereitacts ordinary front gages, from which the sheets to injure or destroy the printing or impress'ionare taken by the grippers 5 of the impressionsurfaces or to otherwise injure the pressor incylinder. J terfere with its operation; 1 6 represents the stripping-fingers, which 25 My invention has for itsobject to provide are mounted on a rock-shaft 7 and are moved a simple and reliablemechanism which will. into position at the proper time to take the be rendered operative by the crumpling of sheets from the grippers 5 by an arm 8 and the paper to stop the press before the paper a cam 9. From the fingers 6 the paper passes accumulates in such a mass as to be apt to to the delivery mechanism proper, which usu- 30 cause injury. I ally includes a set of -'tapes 10 and guide- My invention consists in the novel'parts, rollers 11. Y improvements, and combinations herein In accordance with my invention an arm shown and described. 12 ismounted on a suitable support 13,10-

The accompanying drawings, which are recated at any convenient pointabove the im- 35 ferred to herein and form a part hereof, illuspress'ion-cylinder. Tothe arm 12 is pivoted trate one embodiment of my invention and a contact-finger 14, the free end of which is serve in connection with the description herelocated in cooperative relation with the stripin to explain the principles of the invention per-fingers 6,beingpreferablylocated directly and the best mode in which I have contemabove, and close to, but not in contact with,

4o plated applying those principles. one of said fingers. In accordance with myin- Of the drawings, Figure 1 is a side elevaw'ention the fingerletis connected toavalve for tion, partlytin section, of. a printing-press controllingthe operating fluid of the controlequipped with a controlling mechanism conling mechanismof the press. Preferablythis structed in accordance with my invcntiony mechanism is such asis normally held inac- 45 only as much of the press being shown as is tive bymeans ofapartial vacuuni,thedestruc necessary to make the construction and opertion of which renders the mechanism operaation of the device clear.- Fig. 2 is a plan tive to stop the press or to throw the impresview of the same; and Fig. 3 is a side elevasion-cylinder out of operation, or to do both, tion, on an enlarged scale, of a part of the deas more fully described in the patent granted :00

5o vice removed from the press. to G. F. Lieger, No. 624,228. To this end the I have illustrated my invention in connecarm 12 is provided with a chamber 15, which communicates, on the one hand, with a port formed in one side of the arm 12, and, on the other hand, with a pipe 16, which communicates with the controllingmechanism, and the finger 14 is provided with a valve-arm 17, which when the finger is in its normal position is adapted to cover the port 15. Preferably the arm 17 is so arranged with relation to the port that it has a movement transversely thereto, as in this way the pressure of the fluid ofiers the least resistance to the movement of the arm. As shown, the port 15 is formed near the base of the arm 12, and the arm 17'is so connected to the finger 14 as to partly balance it on the pivot 18. A stop 19 is provided to hold the parts in their operative position. The arm 12 and the parts carried thereby are preferably duplicated on the opposite sides of the machine, so as to render the controlling mechanism operative if the sheet catches at either side of the press. The arms 12 are preferably also adjustable angularly and laterally, so that the contactfingers can be brought into operative relation with the diiferent stripping-fingers 6, as is required to accommodate sheets of different sizes. To this end the support 13 is preferably in the form of a tube, which forms a part of the controlling mechanism, and the arms 12 are connected to the tube by clamps 20', which permit the adjustments referred to. As shown also, the tubes 16 are made flexible and are connected to the tube 13 out of the desired range of adjustment of arms 12. It will be seen from this construction that when the paper catches on the finger 6 at either side of the press and crumples thereon one at least ofthe fingers 13 will be so operated as to cause the valve 17 to uncover the port 15% Air will thus be admitted to the chamber 15,thus destroying the vacuum therein and in the passages connected therewith and rendering the controlling mechanism operative. This operation is rendered more certain by the lifting of the fingers 6, their movement being more or less positively imparted to the fingers 14 by the crumpled paper. In this way the press is certain to be stopped before the mass of paper is carried by the succeeding revolution of the impression-cylinder into contact with the printingform or with the inking apparatus.

My invention is not limited to the precise construction shown, as in carrying the invention into effect many changes may be made in the construction without departing from the principles of the invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a printing-press or similar paper-manipulating machine the combination with a fluid-operated controlling mechanism including anarm having a valve-port, of a controlling-valve pivoted on said arm, and a contact-finger connected to said valve and arranged in such relation to the path of the paper in the machine that a crumpling of the paper will operate said controlling-valve.

2. In a printing-press or similar paper-manipulating machine the combination with a fluid-operated controlling mechanism including an arm having a valve-port, of a valve pivoted on said arm and constructed to open and close said port by a movement transverse thereto, and a contact-finger connected to said valve and arranged in such relation to the path of the paper in the machine that a crumpling of the paper will operate said controlling-valve.

3. In a printing-press or similar paper-manipulating machine, the combination with a fluid-operated controlling mechanism including a tube mounted transversely to the path of the paper in the machine and an arm adjustably mounted on said tube, said arm having a valve-port connected to said tube by a flexible pipe, of a controlling-valve pivoted on said arm, and a contact-finger connected to said Valve and arranged in such relation to the path of the paper that a crumpling of the paper will operate said controlling-valve.

justably mounted on said tube, said arm having a valve-port connected to said tube by a flexible pipe, of a valve constructed to open and close said valve-port by a movement transverse thereto, and a contact-finger connected to said valve and arranged in such relation to the path of the paper that a crumpling of the paper will operate said controlling-valve.

5. In a printing-press the combination with an impression-cylinder and a set of automatically-operated fingers for stripping the sheets therefrom, of a fluid-operated controlling mechanism, a controlling-valve therefor and a contact-finger connected to said valve and arranged in such relation to said stripof the paper in the machine and an arm adping-fingers that a crumpling of the paper WILLIAM C. WILLIAMS.

Witnesses:

EDWIN SEGER, JOHN O. GEMPLER. 

